/*
 * GToe: Gtk+ TicTacToe
 * matrix.c: handles the board
 *
 * Copyright (C) 2010 Dani El-Soufi <danisoufi@gmail.com>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
#include "../include/matrix.h"
#include "../include/socket.h"

MATRIX **
new_matrix(void)
{
    MATRIX br[NCOLS][NROWS];

    int c, r;

    for (r = 0; r < NROWS; ++r)
    {
        for (c = 0; c < NCOLS; ++c)
        {
            br[c][r] = Empty;
        }
    }

    return br;
}

int
set_matrix(int c, int r, const int value)
{
    if (matrix[c][r] != Empty)
    {
        return 0;
    }

    matrix[c][r] = value;

    return 1;
}

int
send_matrix(int socket)
{
    int wbytes;
    int nbytes = 1;
    int c, r;

    for (r = 0; r < NUM_ROWS; ++r)
    {
        for (c = 0; c < NUM_COLS; ++c)
        {
            if ((wbytes = write_to_socket(socket, matrix[c][r], nbytes)) > 0)
            {
                continue;
            }
            else if (recv_oef == 1)
            {
                return 0;
            }
            else if (wbytes < 0)
            {
                return -1;
            }
        }
    }

    return 1;
}

int
receive_matrix(int socket)
{
    int rbytes = 0;
    int nbytes = 1;
    int c, r;

    for (r = 0; r < NUM_ROWS; ++r)
    {
        for (c = 0; c < NUM_COLS; ++c)
        {
            if ((rbytes += read_from_socket(socket, matrix[c][r], nbytes)) > 0)
            {
                continue;
            }
            else if (recv_oef == 1)
            {
                return 0;
            }
            else if (rbytes < 0)
            {
                return -1;
            }
        }
    }

    return 1;
}
